Pella 81CP0101, Installation Instructions Manual

Drill 1/8"

clearance hole

Double-Hung Jamb

1/4"

Double-Hung Head

Drill 1/8"

clearance hole

1/2"

Double-Hung Sill

Drill 1/8"

clearance hole

1/2"

Clad Frame Sill

Drill 1/8"

clearance hole

1"

Clad Frame Head

Drill 1/8"

clearance hole

1"

3D

3D

3D

Double-Hung Sill

Double-Hung Head

Drill 1/8"

clearance hole

Drill 1/8"

clearance hole

Double-Hung Jamb

Drill 1/8"

clearance hole

3D

3D

Designer Series® 

and ProLine®

Architect Series® 

Double-Hung

A. 

Casement: 

 On the room side of the window drill 1/8" diameter clearance holes through the head, 

jambs and sill of the frame. Space the holes a maximum of 6" from each end and a 

maximum of 16" on center.

Note:  On vent casements, place the holes so they do not interfere with the roto operator 

and the latch points on the lock side of the window.

Casement Sill

Drill 1/8" 

clearance hole 

B. 

Double-hung and Clad Frame: 

 On the room side of the window, drill 1/8" diameter clearance holes 

through the frame at the locations shown. Space the holes a maximum 

of 6" from each end and a maximum of 16" on center.

Note:  The lower sash must be raised to drill the holes in the sill of the 

double-hung window.

Single

Window

6"

6"

6"

EVERY

16"

6"

6"

EVERY

16"

6"

16"

EVERY

2A

2B

2B

2B

2

WINDOW PREPARATION

2B

2B